文章摘要
超支化表面活性剂的合成及性能评价
Synthesis and Evaluation of Anionic-nonionic Hyperbranched Surfactants
投稿时间:2018-09-02  修订日期:2018-12-28
DOI:
中文关键词: 阴-非离子表面活性剂  超支化  表面活性  润湿性能  乳化性能  驱油剂
英文关键词: anionic-nonionic surfactant  hyperbranched surfactant  wetting properties  emulsifying properties  oil displacement agent
基金项目:国家自然科学基金项目(纳米粒子调控交联聚合物凝胶触变性机制研究,51704035)
作者单位E-mail
陈思雅 长江大学 chensiy1989@163.com 
罗跃 长江大学 Lyue1958@ 163.com 
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中文摘要:
      以二乙醇胺与顺丁烯二酸酐为初始原料合成超支化不饱和聚(酰胺-酯)HP。通过实验室合成的琥珀酸单十二酰胺磺酸与HP端羟基经酯化反应得到阴-非离子型超支化表面活性剂HPSA-4,用傅立叶红外光谱(FTIR)、1HNMR和凝胶色谱(GPC)对其进行了表征。对HPSA-4的临界胶束浓度、表/界面张力、润湿性能、高温高盐下的抗老化性能、乳化性能以及驱油能力的研究说明HPSA-4具有较低的临界胶束(0.162 g?L-1)、较好的表/界面活性(γcmc=23.4mN/m,δcmc=0.07mN/m)及抗老化性能(NaCl为2*105mg/L,T=150℃时,老化15天表面张力约为25mN/m)。润湿性能的研究说明,HPSA-4具有较好的润湿性能以及润湿反转性能;乳化性能研究说明,HPSA-4乳化性能与十二烷基磺酸钠相当,但其乳化抗盐能力(ωNaCl=8*104mg/L,ωCaCl2 =104mg/L)较十二烷基磺酸钠优异。填砂管驱油实验表明,注入体积为0.5PV时,0.3g/L的HPSA-4可在水驱基础上提高采收率5.3%左右。以上研究均说明,HPSA-4可以作为高温高盐油田驱油剂使用。
英文摘要:
      Diethanolamine and maleic anhydride were used as the starting materials to to synthesize hyperbranched unsaturated poly (amide-ester) HP. The anionic-nonionic hyperbranched surfactant HPSA-4 was synthesized by the esterification of succinic acid monolauramide sulfonic acid and HP. The HPSA-4 and characterized by Fourier transform infrared (FTIR), 1HNMR and GPC。The CMC, SFT, IFT, wetting properties, anti-aging properties under high temperature and high salt, emulsifying properties and oil displacement of HPSA-4 were tested. The results showed that the cmc of HPSA-4 was 0.162 g?L-1, γcmc=23.4mN/m, δcmc=0.07mN/m. Under high temperature(150℃) and high salt(ωNaCl=2*105mg/L), the surface tension is about 25mN/m after aging 15 days. Besides, HPSA-4 has good wetting properties and wetting reversal properties. Moreover, the emulsification performance of HPSA-4 is comparable to that of sodium dodecyl sulfonate, but its emulsification performance under high salt(ωNaCl=8*104mg/L,ωCaCl2 =104mg/L) is superior to that of sodium dodecyl sulfonate. The core flow test indicate that 0.3g/L HPSA-4 can improve EOR about 5.3% on the basis of water flooding when the injection volume is 0.5 PV. All the above studies indicate that HPSA-4 can be used as an oil displacement agent in high temperature and high salinity oilfield.
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